Nanostructured manganese oxide clusters supported on mesoporous silica as efficient oxygen-evolving catalysts

摘要

Nanostructured Mn oxide clusters supported on mesoporous silica KIT-6 efficiently evolve O_2 in aqueous solution under mild conditions.rnGeneration of a solar fuel on a terawatt scale requires that water is used as electron source. Catalysts for the four-electron oxidation of water to oxygen need not only to fulfill the rate and size requirements for keeping up with the solar flux, but must be robust and made of earth abundant elements. Benefiting from explorations of first row transition metal oxides as O_2 evolving electrocatalysts and, in a few cases, chemically driven catalysts over the past several decades, progress on Co oxide-based water oxidation catalysts has recently been reported on two fronts.